mathDifferentiation is used when the equation is nonlinear. To parameterize the equation, partial derivatives are used to construct the design matrix (in your case, that would be the b matrix.) x would be the unknown vector, e would be the residual vector and y would be your ...
April 18, 2008

Science having wayyy tooo much trouble with this simple assignment. Is there a lab that proves that the light reactions must occur prior to the dark reactions in photosynthesis? So far, I thought of the experiment in which one plant is placed in direct sunlight and the other is ...
January 3, 2008

Biology IIII'm having wayyy tooo much trouble with this simple assignment. Is there a lab that proves that the light reactions must occur prior to the dark reactions in photosynthesis? So far, I thought of the experiment in which one plant is placed in direct sunlight and the other ...
January 2, 2008

Quadractic FunctionsPlease check my answers. Find the x-intercepts (if any) for the graph of the quadratic function. 1.f(x) = (x + 2)2 - 4 I got (0,0) and (-4,0) Find the y-intercept for the graph of the quadratic function. 5.y + 9 = (x + 3)2 I got (0,0) Find the domain and range of the quadratic...
October 14, 2007

Quadratic FunctionsPlease explain to me how to do the following problems, I dont understand them. Thanks! Find the x-intercepts (if any) for the graph of the quadratic function. 1.f(x) = (x + 2)2 - 4 Find the y-intercept for the graph of the quadratic function. 5.y + 9 = (x + 3)2 Find the domain...
October 13, 2007

MATHPlease help me to find the least common multiple of 24 and 48. 1st go to this site: http://www.aaamath.com/fra66i-lcm.html Then give it a whirl and post what you think the answer is and we'll see if you need further help.
April 29, 2007

mathPlease help me to find the first and third quartiles, Q1 and Q3, of the following set of numbers.13, 7, 15, 13, 13, 12, 9, 11, 19, 9 Qrrange the numbers in ascending order, like this: 7, 9, 9, 11, 12, 13, 13, 13, 15, 19 Now divide then into the lowest quartile (Q1), second ...
April 29, 2007

mathPlease help me to find the five-number summary of the following set of numbers.338, 226, 149, 391, 247, 501, 300, 223, 320 According to a definition I found online, "The five-number summary of the data consists of the minimum data point, the first quartile, the median, ...
April 23, 2007

mathPlease help me to find the range of each set of numbers.7, 7, 5, 4, 1, 9, 8, 8, 8, 5, 2 The range of a set of data is the difference between the highest and lowest values in the set. This is true whether there is one or more scores at either extreme value. I hope this helps. ...
April 16, 2007

mathBusiness and finance. The following scores were recorded on a 200-point final examination:193, 185, 163, 186, 192, 135, 158, 174, 188, 172, 168, 183, 195, 165, 183.(a) Find the mean final examination score.(b) Find the median final examination score.(c) Is the mean or median a...
April 11, 2007

mathhow do I find the mode of each set of numbers.9, 8, 10, 9, 9, 10, 8 Mode is most common: which is the most common?
April 11, 2007

mathPlease help me to find the mode of each set of numbers.41, 43, 56, 67, 69, 72 There is no mode here. Mode is the most frequent value, all are the same frequency here.
April 11, 2007

mathplease help me to find the median of each set of numbers 1, 4, 9, 15, 25, 36 Median: the dividing point. Since there is no middle number (the number of elements is even), take the average of the two in the middle.. median= (9+15)/2=12 225
April 11, 2007

mathplease hel me to solve the following application. Crafts. Mark uses 1 pt 9 fl oz and then 2 pt 10 fl oz from a container of film developer that holds 3 qt. How much of the developer remains? Is this US liquid measures? There are 16 fluid ounces to the pint, and 2 pints to the ...
April 8, 2007

mathThe minimum daily values (MDVs) for certain foods are given. They are based on a 2,000 calorie per day diet. Find decimal and fractional notation for the percent notation in each sentence.1 ounce of Tostitos provides 9% of the MDV of fat. 9%. Simply divide by 100 (move the ...
April 7, 2007

mathThe minimum daily values (MDVs) for certain foods are given. They are based on a 2,000 calorie per day diet. Find decimal and fractional notation for the percent notation in each sentence.
April 7, 2007

mathThe minimum daily values (MDVs) for certain foods are given. They are based on a 2,000 calorie per day diet. Find decimal and fractional notation for the percent notation in each sentence.
April 7, 2007

mathPlease help me to resolve that sevent questions.Many people are interested in losing weight through exercise. An important fact to consider is that a person needs to burn off 3,500 calories more than he or she takes in to lose 1 pound, according to the American Dietetic ...
April 1, 2007

math questionsPlease help me to resolve that sevent questions.Many people are interested in losing weight through exercise. An important fact to consider is that a person needs to burn off 3,500 calories more than he or she takes in to lose 1 pound, according to the American Dietetic ...
April 1, 2007

business and financePlease hel me to solve the following applications. Business and finance. A store has T-shirts on sale at 2 for $5.50. At this rate, what do five T-shirts cost? Thank you for using the Jiskha Homework Help Forum. Why not find out what one shirt costs first? Divide $5.50 by 2 ...
April 1, 2007

mathSolve the following applications. Crafts. Marc took 3 hours (h) to mow a lawn while Angelina took 150 minutes (min) to mow the same lawn a week earlier. Write the ratio of Marcs time to Angelinas time as a ratio of whole numbers. Once the numbers in your ratio are ...
April 1, 2007

BiologyWhat in milk, (Calcium, fat, ...) causes it to be an antidiuretic? In an experiment I conducted, the subjects drank the same amount of water as milk on separate days. There was a significant difference in the amount of fluid excreted after each drink. Why?
March 26, 2007

helpDescribe an application for the use of ratios or proportions that is not mentioned in your text, or describe how an application problem in the text could be useful in your daily life. "Help" is not a subject, as far as I know. This is a math question. =) It is ...
March 26, 2007

helpThe interest rate on a second mortgage was5 7/8 % last month. This month the interest rate is 7 3/2 %. How many percentage points has the interest rate increased? Are you sure you mean 7 3/2% ? No lender would write an intereest rate that way. Perhaps you typed a numerator or ...
March 26, 2007

nutrition In our society, there are weight loss programs that recommend low fat, no-fat, or high protein diets. Should we eliminate fats from our diets altogether and increase proteins? What are some of the benefits that unsaturated fats and proteins provide when included in a balanced...
March 20, 2007

questionthere are some practical applications for fractions in your daily life. What are the challenges you have experienced regarding the use of fractions? Explain your answers. Practical application: cooking and measuring ingredents, measuring time (half past, etc), looking at my ...
March 19, 2007

questionwhat is the function of the fiber in the body? Outer protection- Fiber is hair and finger and toe nails, which protect sensitive skin. Thank you for using the Jiskha Homework Help Forum. You need to be very specific when you post a question. Do you mean how fiber is used in ...
March 18, 2007

estimateEstimate the following products or quotients.17 11/12 ÷ 6 1/10 215/12*10/61 1,075/366 2.93715847 or 2.94 I actually wonder if they want you to estimate it BEFORE you figure it out. 17 11/12 is close to 18. So let's call that 18. 6 1/10 is close to 6 So now we have ...
March 17, 2007

mathWhat are the challenges you have experienced regarding the use of fractions? Explain your answers. none I found the proof of: pi = 3 + 1/[6 + 3^2/[6+5^2/[6+7^2/[6+9^2/[6+11^2/[6+13^2/[6+.......]]]]]]] challenging 5yd=how many feet There are three feet in each yard. So, three ...
March 14, 2007

mathhow you multoply 5 2/7 x 5/8 x 3 1/2 write the answer in simplest form First of all you have to change all mixed fractions to improper fractions, mixed fractions are useless in calculations. Then multiply your numerators together and multiply your denominators together. Check ...
March 12, 2007

mathhow I change 28/9 to a mixed or whole number divide 28 by 9 to give you 3 with a remainder of 1. so 28/9 = 3 1/9 (three and one ninth) Thank you Reiny
March 12, 2007

maththe length of a rectangle is 7/8 yards and its width is 32/49 yards what is its area in square yards? 7/8 times 32/49 = 224/392 now simplify (the lowest common denominator is 56) so 224/392 = 4/7 So there is 4/7 of a square yard in the rectangle Thank you Lance for your help
March 9, 2007

mathSome people believe that calculators have eliminated the need to learn the skills required to perform mathematical operations by hand. State your position on this belief, and then support your position with real-life stories or examples I will be happy to critique your ...
March 4, 2007

mathwhat are your feelings about math, rate your math anxiety, and describe what coping mechanisms might be helpful to you and your I like math. What matters is what YOUR feelings amd "coping mechanisms" are.
March 4, 2007

percenthow to change percentage to numbers Move the percent sign two places to the left. Add a decimal point there. Actually, don't move the percent sign at all. Get rid of the percent sign. Think about what percent means: Per (each) Cent (the prefix meaning 100. Century is 100 ...
February 8, 2007

HELLPPPP!!!!!!!!!!!!!!!!!WHat are two circumpolar constellations Thanks alot Here are the five circumpolar constellations, you can choose two from this list: Ursa Major Ursa Minor Draco Cassiopeia Cepheus
October 25, 2006

Earth ScienceHow are distances in space measured? What is the nearest star to Earth beyond the sun and how far away is it???? http://en.wikipedia.org/wiki/Light_year http://en.wikipedia.org/wiki/Alpha_Centuri why does Jupiter spin so fast while it's do big
October 25, 2006

Earth ScienceWhat is circumpolar, when it is visible and what are two circumpolar constellations http://en.wikipedia.org/wiki/Circumpolar_constellation http://en.wikipedia.org/wiki/Circumpolar
October 25, 2006